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Deposition of Nanofilms inside a Polymer Template:Formation of Metal Nanotubes

Muench, Falk and Lauterbach, Stefan and Kleebe, Hans-Joachim and Ensinger, Wolfgang :
Deposition of Nanofilms inside a Polymer Template:Formation of Metal Nanotubes.
In: e-Journal of Surface Science and Nanotechnology, 10 pp. 578-584. ISSN 1348-0391
[Article] , (2012)

Abstract

Given sufficient synthetic control, electroless plating is a suitable method for the fabrication of precisely defined nanomaterials. This study focuses on requirements which have to be met for the homogeneous and conformal electroless metal deposition within ion track etched polymer templates, allowing the fabrication of high aspect ratio metal nanotubes. Namely, the effects of (i) the seed density of the substrate, (ii) the surface-selectivity of the plating reaction and (iii) the deposition speed and the grain size of the resulting deposit are examined, and strategies to modify these characteristics in order to improve nanotube formation are illustrated. With optimized procedures, Ag, Au and Pt nanotubes were obtained. As an application example, metal nanotube membranes were utilized as flow-through microreactors, catalyzing the reduction of 4-nitrophenol with sodium borohydride. By partial exchange of Ag precursor structures with Pt, roughened Ag-Pt nanotubes with significantly improved activity were obtained. DOI: 10.1380/ejssnt.2012.578]

Item Type: Article
Erschienen: 2012
Creators: Muench, Falk and Lauterbach, Stefan and Kleebe, Hans-Joachim and Ensinger, Wolfgang
Title: Deposition of Nanofilms inside a Polymer Template:Formation of Metal Nanotubes
Language: English
Abstract:

Given sufficient synthetic control, electroless plating is a suitable method for the fabrication of precisely defined nanomaterials. This study focuses on requirements which have to be met for the homogeneous and conformal electroless metal deposition within ion track etched polymer templates, allowing the fabrication of high aspect ratio metal nanotubes. Namely, the effects of (i) the seed density of the substrate, (ii) the surface-selectivity of the plating reaction and (iii) the deposition speed and the grain size of the resulting deposit are examined, and strategies to modify these characteristics in order to improve nanotube formation are illustrated. With optimized procedures, Ag, Au and Pt nanotubes were obtained. As an application example, metal nanotube membranes were utilized as flow-through microreactors, catalyzing the reduction of 4-nitrophenol with sodium borohydride. By partial exchange of Ag precursor structures with Pt, roughened Ag-Pt nanotubes with significantly improved activity were obtained. DOI: 10.1380/ejssnt.2012.578]

Journal or Publication Title: e-Journal of Surface Science and Nanotechnology
Volume: 10
Publisher: The Surface Science Society of Japan
Uncontrolled Keywords: Catalysis, Electroless plating, Metal na-notubes, Nano structure chemistry, Polycrystalline thin films, processing and fabrication
Divisions: 11 Department of Materials and Earth Sciences > Earth Science > Geo-Material-Science
11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 19 Nov 2012 12:24
Additional Information:

This paper was presented at the 16th International Conference on Solid Films and Surfaces (ICSFS-16), University of Genoa, Genoa, Italy, 1-6 July, 2012.

Identification Number: doi:10.1380/ejssnt.2012.578
Funders: Supply of Au solution by Schütz Dental GmbH is gratefully acknowledged.
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